Horizontal continuous casting plant for steel - mfg. large curved or helical billets with adjustable radii and pitch

摘要

Molten metal flows from a vessel into a horizontal, cooled mould from which its periodically drawn by an extractors, followed by rolls supporting the billet and a saw cutting the billets to length. A dummy billet forms a chill on which the molten metal solidifies at the start of the process. The casting machine has a ring frame with radial guides joined together at the centre of the ring frame. The saw is mounted on rolls, and all the devices are mounted on the radial guides so they can be moved radially to cat billets with different specified radii. The devices can pref. be adjusted vertically to alter the pitch of spiral castings, whereas the extractor and saw, are pref. fitted on telescopic guides which can pivot at the centre of the ring frame so these devices can travel with the billet. Used for mfg. steel castings, e.g. tubbings; foundation-and insert-parts for water-turbines; surface plate or chuck glide tracks for vertical boring and turbing mills; ring tables and guides for military gun turrets or walking draglines. Castings with different radii of curvature, e.g. 3-10 metres, and segments of helices, or helices, can be cast.